Hello. I like your vertikal router. Is then router stabil enogh for the need of a Carpenter? Are you using 21mm Plywood or 21mm MDF. What type of spindel (KW) is maximum allowed and whatbis the maximum feed (6mm cutter) in oak. Thank you, Veit

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Question #: 6951

Question: Hello. I like your vertikal router. Is then router stabil enogh for the need of a Carpenter? Are you using 21mm Plywood or 21mm MDF. What type of spindel (KW) is maximum allowed and whatbis the maximum feed (6mm cutter) in oak. Thank you, Veit

Current Solution

The greenLean vertical CNC is stable enough to handle large-scale production on a daily basis. We use 3/4" MDO plywood, which is equivalent to about 19mm. The gantry is designed to hold a 2.2kW Spindle, with a maximum of 24,000 RPM.

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Other Possible Solutions to this Question

Since I am using normal all-thread lead screw 13 TPI 1/2" for the book build cnc, what can be the maximum feed rate of machine and how can I change the mechanical setup in mach 3? I am using 1/4" steel carbile endmill with 2 flutes and router is 2 HP with variable speed
Book build (scratch build), feedrates and recommendation.

Using standard allthread will provide around 20-30 ipm using 36 volts. Although it allows for a working CNC machine, the RPM of the spindle/router will need to spin at the lowest setting to provide the beat efficiency and life for the end mill at 1/4" cut diameter and higher. The speeds may be fine for smaller end mills.

If you would like faster speeds, you should change the lead screws on the CNC machine to the 1/2" 5 start 10 TPI which translates to 2 turns per inch which means, the stepping motor will not need to turn as fast to produce faster motion. That is to say, the stepping motor will only need to turn two revolutions for the machine to travel one inch and with the allthread, the stepping motor will need to turn 13 times to reach one inch.

Link to the lead screw and other mechanical parts needed:
https://www.buildyourcnc.com/CNCMachineMechanicalParts.aspx

To change the lead screws you will need (for each axis):

1. The lead screw for that axis.
2. Two 1/2" collars to keep the lead screw axially stable.
3. One Antibacklash nut.

Additional Information:
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Since I am using normal all-thread lead screw 13 TPI 1/2" for the book build cnc, what can be the maximum feed rate of machine and how can I change the mechanical setup in mach 3? I am using 1/4" steel carbile endmill with 2 flutes and router is 2 HP with variable speed
Good evening, if I wanted to use your inductive proximity sensor's with your USB interface board what would I need besides the sensors I would be using 5 of the sensors. I have a 48V 12amp power supply. Thank you
I would suggest using the NPN proximity sensor for the Mach3 USB or the Pokeys57cnc. The proximity sensors have a top DC voltage limit of 30 volts, so it would be best to use the 24V power supply that is used to power the controller. Both controllers have a 24V power requirement, so that is convenient.

The blue wire of the proximity sensor is the GND wire and is connected to the 24V power supply's V- terminal. The brown wire is the positive wire and is connected to the V+ terminal of the 24V power supply. The black wire is the signal wire and is connected to the input terminal of the controller.
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Good evening, if I wanted to use your inductive proximity sensor's with your USB interface board what would I need besides the sensors I would be using 5 of the sensors. I have a 48V 12amp power supply. Thank you
I AM BUILDING THE CNC DEMONSTRATED IN YOUR PUBLISHED BOOK 'BUILD OWN MACHINE', 2009. YOU SELL 3 AXIS ELECTRONIS COMBO, PARALLEL, FOR $390. IS THIS PACKAGE FROM BOOK. OR ARE THERE OTHER RECOMMENDATIONS. THANK YOU, HARY HOLSTEIN
The CNC router build from book "Build Your Own CNC Machine" uses the basic electronics combo kit that includes three 425 oz-in motors is the kit designed for that machine. Here is a link to that electronics package: https://www.buildyourcnc.com/Item/electronicsAndMotors-3axis-425-elcombo
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I AM BUILDING THE CNC DEMONSTRATED IN YOUR PUBLISHED BOOK 'BUILD OWN MACHINE', 2009. YOU SELL 3 AXIS ELECTRONIS COMBO, PARALLEL, FOR $390. IS THIS PACKAGE FROM BOOK. OR ARE THERE OTHER RECOMMENDATIONS. THANK YOU, HARY HOLSTEIN
thank you for the reply. I would be really good to know the calculation. The lead screw is 1/2" diameter with 13 TPI. Please provide the calculation for determing the maximum weight motor can handle on Z-axis on book build cnc. And one more question. If I am cutting 18mm MDF with 6mm cutting bit (so 6mm pass), what can be the maximum speed rate of cutting and spindle speed of router? thank you
There are two main questions that we can answer with respect to motor torque and the mechanical advantage of lead screws, 1) What torque motor do you need to lift a particular weight, or 2) What maximum weight will my motor torque be able to lift.

This formula uses Newtons (N) as it's final unit. Use this with the included radius (R) to determine the torque. Newtons can easily be converted to lbs or ounces using online conversions.

Effort = Sf + (Load/(2 x pi x (R/p) x Se))

where:
p = pitch of the screw
Se = screw efficiency = Standard lead screw will be between 20% (.2) and 40% (.4)
Sf = static force. This is the force that is needed to start the movement. The number may be eliminated, but it is good to use a number in the 5 N to 20 N range.
Load = the expected load that the effort will need to carry (i.e., the router and the included axis assembly that the motor will need to lift)
R = radius of the lead screw

This formula is based on the "law of the machine"

The final effort amount with its unit of newtons and R will be the torque. For example, if the effort comes to 100 N (newtons) and the R is .5 inches, then you can assume that the effort is 50 N-in since it would take twice the effort to turn form the one inch mark from the center of the shaft.

Example:

Load = 90 N (20.2 lbs)
R = 1 inch since that is the length from the center of the shaft that the motor is rated
p = 1 inch / 13 = .08 inches

Effort = 5 N + (90 N / (2 x 3.14 x (1 / .08) x .2))
Effort = 5 N + (90 N / (6.28 x 12.5 x .2))
Effort = 5 N + (90 N / (15.7))
Effort = 5 N + (5.73 N)
Effort = 10.7 N = 2.4 lbs = 38.4 oz-in

I am putting the oz-in on the end because the formula considers the distance from the center of the shaft to be one inch.

Therefore, a 425 oz-in motor would be able to lift a 20.2 lb Router with its accompanying assembly. If the assembly and router is heavier, plug in the numbers and determine the effort required.

With a bit of algebra, the formula can be rewritten to find the load:

Load = (Effort - Sf) x (2 x pi x (R/p) x Se)

Another formula that does not consider friction at all:

Effort = (Load x p) / (2 x pi x R)

Lets see if we get similar results:

Effort = (20 lb x .08 inches) / (2 x 3.14 x 1)
Effort = 1.6 / 6.28 = .255 lbs = 4.08 oz-in

The results from both formulas appear to be very small because a 13 TPI screw will have enormous mechanical advantage.

It is evident that the first formula that does consider friction that we are loosely estimating is far more conservative than the second formula. Either way, even the most conservative formula shows that the 425 oz-in motor will handle very large weights. If you are using a lead screw with only two turns per inch, .5 inch pitch, you can determine the requirements with the first formula.

Example for a 10 TPI 5 start (2 turns per inch) lead screw:

Load = 90 N (20.2 lbs)
R = 1 inch since that is the length from the center of the shaft that the motor is rated
p = 1 inch / 2 = .5 inches

Effort = 5 N + (90 N / (2 x 3.14 x (1 / .5) x .2))
Effort = 5 N + (90 N / (6.28 x 2 x .2))
Effort = 5 N + (90 N / (2.512))
Effort = 5 N + (35.83 N)
Effort = 40.828 N = 9.18 lbs = 146.88 oz-in

Customer Response:
thank you so much

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how do i calculate torque of stepper motor if lead screw coupled to motor shaft and load applied by lead screw on plate is 100 kg by vertically

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What is the max load that 2 NEMA 17 stepper motors (spaced 2 feet apart, both will be pushing up on the same gantry) can lift while using a rod with the following specifications T8 OD 8mm Pitch 2mm Lead 4mm for each motor.

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thank you for the reply. I would be really good to know the calculation. The lead screw is 1/2" diameter with 13 TPI. Please provide the calculation for determing the maximum weight motor can handle on Z-axis on book build cnc. And one more question. If I am cutting 18mm MDF with 6mm cutting bit (so 6mm pass), what can be the maximum speed rate of cutting and spindle speed of router? thank you
I'm interested in getting the CO2 laser & Spindle for my Blackfoot - I currently have just the router mount. Do you sell complete kits or can you advise on what I need? Thank you
Yes, if you want a laser on the machine, I would highly suggest that the laser be mounted on a separate gantry, similar to the following image:
https://buildyourcnc.com/images/machineConfigurations/greenBullV2_size_04x08_angle_flat_f1_no4thaxis_f2_wilasergantry_f3_nolaser_f4_wilaserready_.png

You would need to develop the gantry structure, but you can use this thread to work out the design with my guidance.

You will need a laser tube, laser power supply, laser controller, mirrors, mirror mounts, lens and nozzle. You will also need some mechanical parts and some motors, drivers and power supplies for the drivers and the controller.

Additional Information:
Yes, if you want a laser on the machine, I would highly suggest that the laser be mounted on a separate gantry, similar to the following image:
https://buildyourcnc.com/images/machineConfigurations/greenBullV2_size_04x08_angle_flat_f1_no4thaxis_f2_wilasergantry_f3_nolaser_f4_wilaserready_.png

You would need to develop the gantry structure, but you can use this thread to work out the design with my guidance.

You will need a laser tube, laser power supply, laser controller, mirrors, mirror mounts, lens and nozzle. You will also need some mechanical parts and some motors, drivers and power supplies for the drivers and the controller.
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I'm interested in getting the CO2 laser & Spindle for my Blackfoot - I currently have just the router mount. Do you sell complete kits or can you advise on what I need? Thank you
I'm interested in getting the CO2 laser & Spindle for my Blackfoot - I currently have just the router mount. Do you sell complete kits or can you advise on what I need? Thank you
Yes, if you want a laser on the machine, I would highly suggest that the laser be mounted on a separate gantry, similar to the following image:
https://buildyourcnc.com/images/machineConfigurations/greenBullV2_size_04x08_angle_flat_f1_no4thaxis_f2_wilasergantry_f3_nolaser_f4_wilaserready_.png

You would need to develop the gantry structure, but you can use this thread to work out the design with my guidance.

You will need a laser tube, laser power supply, laser controller, mirrors, mirror mounts, lens, and nozzle. You will also need some mechanical parts and some motors, drivers, and power supplies for the drivers and the controller.
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I'm interested in getting the CO2 laser & Spindle for my Blackfoot - I currently have just the router mount. Do you sell complete kits or can you advise on what I need? Thank you
I need to know if you have prices for educators, or other ways that a teacher could procure a blackToe 2'x4' CNC router. I apologize that this is sort of a bold question, as your routers are already well-priced.
We do offer discounts for academic institutions and instructors. Please contact us via the phone number above to inquire about our academic discount.
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I need to know if you have prices for educators, or other ways that a teacher could procure a blackToe 2'x4' CNC router. I apologize that this is sort of a bold question, as your routers are already well-priced.
BUILDING ONE OF YOUR GREENBULL 6X LONG AND 2.2 KILOWATT SPINDLE DOES NOT FIT. SEEMS LEAD SCREW YOU SENT WITH KIT IS SHORT 42" LOOKS LIKE IT NEEDS TO BE 5 OR 6 INCH LONGER. THIS CORRECT? WHAT THE NEEDED LENGTH FOR UNIT?
The leadscrew length for the greenBull long Z-axis is 47 inches.

Additional Information:
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BUILDING ONE OF YOUR GREENBULL 6X LONG AND 2.2 KILOWATT SPINDLE DOES NOT FIT. SEEMS LEAD SCREW YOU SENT WITH KIT IS SHORT 42" LOOKS LIKE IT NEEDS TO BE 5 OR 6 INCH LONGER. THIS CORRECT? WHAT THE NEEDED LENGTH FOR UNIT?
I am building the CNC demonstrated in your published book 'Build Your Own CNC Machine', 2009. You sell the 3 axis electronis combo, parallel, for $390. Is this the package from the book. Or are there other recommendations. Thank you, Hary Holstein
The CNC router build from book "Build Your Own CNC Machine" uses the basic electronics combo kit that includes three 425 oz-in motors is the kit designed for that machine. Here is a link to that electronics package: https://www.buildyourcnc.com/Item/electronicsAndMotors-3axis-425-elcombo
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I am building the CNC demonstrated in your published book 'Build Your Own CNC Machine', 2009. You sell the 3 axis electronis combo, parallel, for $390. Is this the package from the book. Or are there other recommendations. Thank you, Hary Holstein
I wired my vfd (2.2kw version) and tried test running the spindle. I configured to your specs on this website, only issue is we got an error code. Err 02, do you know what this is? OR have a list of error codes? Thank you
Can you provide the model number of your VFD?

Yes, I have the "YL600 - 2S - 2K20"

It just came with a small booklet that is all in Chinese...
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I wired my vfd (2.2kw version) and tried test running the spindle. I configured to your specs on this website, only issue is we got an error code. Err 02, do you know what this is? OR have a list of error codes? Thank you
I own a custom rug shop where we design a fabricate custom floors of many types, Have you performed any type of testing using your 40 watt and or 80 watt laser for the cutting of thse textiles.
Yes, we have cut many fabrics with the laser. Or CO2 lasers can generally cut fabrics and textiles without a problem. What types of textiles (materials) do you need to use with the laser machine? Is there a layering of materials?

Additional Information:
We would cut multiple heights of different carpets and even hard surfaces such as Vinyl composition tile, Luxury vinyl tile,etc. and I'm wanting to explore etching into plain color carpets using the laser.
I'm contemplating your 5' x 12' machine with the laser/spindle combo.
Is it possible to make a site visit to your location and see the capabilities of the equipment ?

Additional Information:
Carpets are not a problem as long as there are no materials in the carpet or in the carpet binding layers that will off-gas toxic fumes. Check the manufacturer's materials of all of the parts of the carpet.

The vinyl should not be a problem, just make sure there is no material mixed within the composite that will off-gas harmful fumes such as chloride. The chloride will mix with the hydrogen in the air and form HCL (hydrochloric acid) which can be harmful if inhaled, but can also affect some of the metallic parts in the machine.

We have cut vinyl with the laser with great results.
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I own a custom rug shop where we design a fabricate custom floors of many types, Have you performed any type of testing using your 40 watt and or 80 watt laser for the cutting of thse textiles.
I would like to build the 2’x 4’ blackToe2x4v40 CNC router. I have your book. I want to build the latest model blackToe2x4 v40. Are those the correct plans on your web book page ? Is there a bill of materials? If I use a Porter Cable 3-3/4 router motor what size stepper motors do I need?
The blackToe 2'x4' cnc machine is sold as a kit only. We offer plans for the scratch (book) build machine that can be found here for purchase and also comes with a DVD showing the build process: http://www.buildyourcnc.com/cnckitintro.aspx and the plans for build in the book is on the CNC book page: http://www.buildyourcnc.com/Book.aspx.

You can use the same size stepping motors referenced in the book: http://www.buildyourcnc.com/category/elcombo
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I would like to build the 2’x 4’ blackToe2x4v40 CNC router. I have your book. I want to build the latest model blackToe2x4 v40. Are those the correct plans on your web book page ? Is there a bill of materials? If I use a Porter Cable 3-3/4 router motor what size stepper motors do I need?
I WIRED MY VFD (2.2KW VERSION) AND TRIED TEST RUNNING THE SPINDLE. CONFIGURED TO YOUR SPECS ON THIS WEBSITE, ONLY ISSUE IS WE GOT AN ERROR CODE. ERR 02, DO YOU KNOW WHAT IS? OR HAVE A LIST OF CODES? THANK
Can you provide the model number of your VFD?

Yes, I have the "YL600 - 2S - 2K20"

It just came with a small booklet that is all in Chinese...
Click the link to add information to this solution:
I WIRED MY VFD (2.2KW VERSION) AND TRIED TEST RUNNING THE SPINDLE. CONFIGURED TO YOUR SPECS ON THIS WEBSITE, ONLY ISSUE IS WE GOT AN ERROR CODE. ERR 02, DO YOU KNOW WHAT IS? OR HAVE A LIST OF CODES? THANK
I am considering the purchase of a Black foot or Green Bull CNC router and would like to come and visit your facility to see them in person and to discuss my requirements. Please can you tell me your address. I am based in NW Houston. Many thanks.
If you would like to come to the office, please call the office at 281-815-7701 to request a visit at your specified time within our business hours so we can make sure that the right person will be there to assist you.
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I am considering the purchase of a Black foot or Green Bull CNC router and would like to come and visit your facility to see them in person and to discuss my requirements. Please can you tell me your address. I am based in NW Houston. Many thanks.
I would like to design my own CNC router around one of your electronics bundles, either the 3 Axis - Heavy Gantry or 3 Axis - All Large Motors. Do you have the data sheets for the motors so that I can use the dimensions in my model?
You can find the datasheets to our motors be going to the the stepping motor category page https://www.buildyourcnc.com/category/nema and selecting the motor. This will bring you to the product page for the motor and all of the motor information will be found there.
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I would like to design my own CNC router around one of your electronics bundles, either the 3 Axis - Heavy Gantry or 3 Axis - All Large Motors. Do you have the data sheets for the motors so that I can use the dimensions in my model?
[77] Hello. I’m interested in buying a water cooled spindle and VFD. I have an Avid Pro CNC and would love to control it using Mach 4 but I keep hearing it’s difficult to integrate. Also, is the water pump 120 or 240? I’d love any advice etc. eBay is a web of confusion with all of the options. Thank you.
You will need to look for the parameter that controls the run frequency. The frequency can be controlled bu the panel, external terminals, or the RS485 TX/RX terminals (UART protocol). You will want to change that parameter so it uses the panel. If you are referring to the maximum panel dial frequency is only allowing 200-300 rpm, then look for the parameters to control the frequency.

For 200 RPM:
Hz = 200/60 = 3.33 Hz

For 300 RPM:
Hz = 300/60 = 5 Hz

Conversion to RPM:
If you ever find yourself yearning to reverse-engineer the process, the formula is as follows:

RPM = Hz × 60

Look for values that match somewhere between 3 and 5 in your frequency parameters and replace them with 400 to give you 24,000 RPM max.
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[77] Hello. I’m interested in buying a water cooled spindle and VFD. I have an Avid Pro CNC and would love to control it using Mach 4 but I keep hearing it’s difficult to integrate. Also, is the water pump 120 or 240? I’d love any advice etc. eBay is a web of confusion with all of the options. Thank you.
I am building a cnc mill using your USB controller and i would like to know what is the specification of potentiometer used for adjusting manual axis jog speed
Dealing with our USB BoB, the potentiometer that will be used in the key jog, is a 5V, 5k - 10k Ohm potentiometer.
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I am building a cnc mill using your USB controller and i would like to know what is the specification of potentiometer used for adjusting manual axis jog speed
How do I wire up multiple E-stop to breakout board, does each E-stop need there own pin? If not since there are only 4 screws on stop 2 for no and 2 for nc do you just splice the wires together if your only using 1 pin? Thanks
https://buildyourcnc.com/Item/electronicsAndMotors-electronic-component-e-stop-button-switch-safety#prettyPhoto/0/
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How do I wire up multiple E-stop to breakout board, does each E-stop need there own pin? If not since there are only 4 screws on stop 2 for no and 2 for nc do you just splice the wires together if your only using 1 pin? Thanks
Regarding 1/2" 5 start and 10 TPI ACME precision lead screw, what the maximum length you can ship within USA? I'm looking for something like 100" and I could use a 1" screw if available. Please include estimated price. Thanks.
The maximum length we can ship is a total of 78" inches. However we can send your required length in portions. Please refer to adding the total items you require to your cart to get a visualized amount and shipping cost.
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Regarding 1/2" 5 start and 10 TPI ACME precision lead screw, what the maximum length you can ship within USA? I'm looking for something like 100" and I could use a 1" screw if available. Please include estimated price. Thanks.